Photon emission from bare quark stars
نویسندگان
چکیده
منابع مشابه
Distinguishing Bare Quark Stars from Neutron Stars
Observations to date cannot distinguish neutron stars from self-bound bare quark stars on the basis of their gross physical properties such as their masses and radii alone. However, their surface luminosity and spectral characteristics can be significantly different. Unlike a normal neutron star, a bare quark star can emit photons from its surface at super-Eddington luminosities for an extended...
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We show that the Coulomb barrier at the quark surface of a hot strange star may be a powerful source of ee pairs which are created in an extremely strong electric field of the barrier and flow away from the star. The luminosity in the outflowing pair plasma depends on the surface temperature TS and may be very high, up to ∼ 3× 10 51 ergs s at TS ∼ 10 11 K. The effect of pair creation by the Cou...
متن کاملSolid Bare Strange Quark Stars
The reason, we need three terms of ‘strange’, ‘bare’, and ‘solid’ before quark stars, is presented concisely though some fundamental issues are not certain. Observations favoring these stars are introduced. 1. Hadronic stability: why strange? Strange (quark) stars are quark stars with strangeness. What’s strangeness? Some peculiar cosmic ray events were discovered in 1947, with a strange nature...
متن کاملPair emission from bare magnetized strange stars
The dominant emission from bare strange stars is thought to be electron-positron pairs, produced through spontaneous pair creation (SPC) in a surface layer of electrons tied to the star by a superstrong electric field. The positrons escape freely, but the electrons are directed towards the star and quickly fill all available states, such that their degeneracy suppresses further SPC. An electron...
متن کاملThermal emission from bare quark matter surfaces of hot strange stars
We consider the thermal emission of photons and ee pairs from the bare quark surface of a hot strange star. The radiation of high-energy (∼> 20 MeV) equilibrium photons prevails at the surface temperature T S ∼> 5× 10 10 K, while below this temperature, 8 × 10 ∼< TS < 5 × 10 10 K, emission of ee pairs created by the Coulomb barrier at the quark surface dominates. The thermal luminosity of a hot...
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ژورنال
عنوان ژورنال: Journal of Experimental and Theoretical Physics
سال: 2011
ISSN: 1063-7761,1090-6509
DOI: 10.1134/s1063776110061068